# 60Cr-40Ni (R20600) Casting Alloy

60Cr-40Ni alloy is a chromium alloy. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. It has a very high heat capacity among alloys in the same category. In addition, it has a very high tensile strength and a fairly low density.

The graph bars on the material properties cards below compare 60Cr-40Ni alloy to: chromium alloys (top), all alloys in the same category (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

## Mechanical Properties

Elastic (Young's, Tensile) Modulus

220 *GPa* 32 *x 10 ^{6} psi*

Poisson's Ratio

0.25

Shear Modulus

87 *GPa* 13 *x 10 ^{6} psi*

Tensile Strength: Ultimate (UTS)

870 *MPa* 130 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

660 *MPa* 96 *x 10 ^{3} psi*

## Thermal Properties

Latent Heat of Fusion

370 *J/g*

Specific Heat Capacity

490 *J/kg-K* 0.12 *BTU/lb-°F*

Thermal Expansion

16 *µm/m-K*

## Otherwise Unclassified Properties

Base Metal Price

49 *% relative*

Density

7.8 *g/cm ^{3}* 490

*lb/ft*

^{3}Embodied Carbon

7.4 *kg CO _{2}/kg material*

Embodied Energy

110 *MJ/kg* 46 *x 10 ^{3} BTU/lb*

Embodied Water

380 *L/kg* 45 *gal/lb*

## Common Calculations

Resilience: Unit (Modulus of Resilience)

1000 *kJ/m ^{3}*

Stiffness to Weight: Axial

16 *points*

Stiffness to Weight: Bending

26 *points*

Strength to Weight: Axial

31 *points*

Strength to Weight: Bending

26 *points*

Thermal Shock Resistance

18 *points*

## Alloy Composition

Cr | 58 to 62 | |

Ni | 34.5 to 42 | |

Si | 0 to 1.0 | |

Fe | 0 to 1.0 | |

Ti | 0 to 0.5 | |

Mn | 0 to 0.3 | |

N | 0 to 0.3 | |

Al | 0 to 0.25 | |

C | 0 to 0.1 | |

P | 0 to 0.020 | |

S | 0 to 0.020 |

All values are % weight. Ranges represent what is permitted under applicable standards.

## Followup Questions

## Similar Alloys

## Further Reading

ASTM A560: Standard Specification for Castings, Chromium-Nickel Alloy